From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0A5D0C433DF for ; Thu, 9 Jul 2020 17:55:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D314720775 for ; Thu, 9 Jul 2020 17:55:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727768AbgGIRzH (ORCPT ); Thu, 9 Jul 2020 13:55:07 -0400 Received: from mga02.intel.com ([134.134.136.20]:4379 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726615AbgGIRzH (ORCPT ); Thu, 9 Jul 2020 13:55:07 -0400 IronPort-SDR: c5PpCyyLozX85SPI9Le2JtdYHlzxLLjO4Kqc/x3HUeoH/dgiRa0xFaEqjU5C9ekYRBETUEttNW vhQSnaipHnQw== X-IronPort-AV: E=McAfee;i="6000,8403,9677"; a="136281326" X-IronPort-AV: E=Sophos;i="5.75,332,1589266800"; d="scan'208";a="136281326" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Jul 2020 10:55:06 -0700 IronPort-SDR: TSX+R5NfD0uP8yiNp7U2VYqamMQ1OUp+j1OeoxRI0tTHwiWWnVsZR6kzUrM4zf86/E40BadnZa vPhXbnkR6YRg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,332,1589266800"; d="scan'208";a="323303320" Received: from tassilo.jf.intel.com (HELO tassilo.localdomain) ([10.7.201.21]) by FMSMGA003.fm.intel.com with ESMTP; 09 Jul 2020 10:55:06 -0700 Received: by tassilo.localdomain (Postfix, from userid 1000) id 47142301B2A; Thu, 9 Jul 2020 10:55:06 -0700 (PDT) Date: Thu, 9 Jul 2020 10:55:06 -0700 From: Andi Kleen To: Adrian Hunter Cc: Arnaldo Carvalho de Melo , Jiri Olsa , linux-kernel@vger.kernel.org Subject: Re: [PATCH 10/11] perf intel-pt: Add support for decoding FUP/TIP only Message-ID: <20200709175506.GD1126680@tassilo.jf.intel.com> References: <20200709173628.5613-1-adrian.hunter@intel.com> <20200709173628.5613-11-adrian.hunter@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200709173628.5613-11-adrian.hunter@intel.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jul 09, 2020 at 08:36:27PM +0300, Adrian Hunter wrote: > +The q option does not decode TNT packets, and does not walk object code, but > +gets the ip from FUP and TIP packets. The q option can be used with the b and i > +options but the period is not used. The q option decodes more quickly, but is > +useful only if the control flow of interest is represented or indicated by FUP, > +TIP, TIP.PGE, or TIP.PGD packets. However the q option could be used to find > +time ranges that could then be decoded fully using the --time option. Ah ok the documentation is here. Ignore previous suggestion. Can you describe the effect in a high level without referring to packet names? The user may not be familar with them. So two qs will be PSB only decoding I hope? -Andi